[gmx-users] do_dssp

Dear gmxuser,
I ried the do_dssp command to analyses my protein structure. It produce
scount.xvg ans ss.xpm file. I could see xvg file by xmgrace and ss,xpm by
GIMP software. Till now everything is ok. But when I want a make post
script file by xpm2ps for producing plot.eps file I get the following
error:
There are 1 matrices in ss.xpm
Matrix 0 is 954 x 290
Segmentation fault
What should be the fault.
thanks